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15 October, 17:14

Alana buys one shirt with a regular price of p dollars and 2 sweaters with a regular price of s dollars. Shes uses a coupon so that she pays only half the regular price. Write an expression that shows how much money Alana spends in all. Then exlpain the expression.

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  1. 15 October, 18:08
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    c = ½ (p + 2s)

    Step-by-step explanation:

    Let c = the total cost

    p = cost of one shirt

    2s = cost of two sweaters

    p + 2s = total cost before discount

    But Alana paid only half the regular price, so

    c = ½ (p + 2s)
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